Benzophenone-5
What is Benzophenone-5?
Benzophenone-5, chemically known as monosodium 3-benzoyl-4-hydroxy-6-methoxybenzenesulfonate or sulisobenzone, is a synthetic organic compound from the benzophenone class. Produced via chemical synthesis, it includes a sulfonate group for enhanced water solubility compared to other benzophenones. Primarily found in sunscreen lotions, gels, and water-resistant formulations, it serves as a chemical UV filter. In products, it absorbs harmful UVB rays and a portion of UVA radiation. The molecule captures UV energy, exciting its electrons, then releases it as low-level heat without damaging skin cells. This process occurs on the skin's surface layer, aiding broad-spectrum protection when paired with complementary filters. Its solubility supports clear, non-greasy textures in daily skincare items like moisturizers with SPF.
Benefits
Absorbs UVB and some UVA rays to support sun protection in formulations.
Water-soluble nature enables use in lightweight, clear sunscreens.
Non-comedogenic, minimizing pore-clogging potential.
Who It's For
A quick guide for who this ingredient may suit (and who should be cautious).
| Who May Benefit | Who Should Avoid |
|---|---|
| Users of water-based or gel sunscreens seeking chemical filters. | People with known sensitivity to benzophenone ingredients. |
| Individuals needing daily UV defense in moisturizers or lotions. | Individuals preferring physical mineral UV blockers. |
| Those with normal skin preferring non-greasy SPF products. | Those experiencing irritation from chemical sunscreens. |
Safety Notes
- EWG rates it 2-4, indicating low to moderate overall concern.
- Approved for sunscreen use within regulated concentrations by authorities.
Frequently Asked Questions about Benzophenone-5
What does benzophenone-5 do in skincare?
It acts as a chemical filter absorbing UVB and some UVA rays in sunscreens.
Is benzophenone-5 comedogenic?
No, it has a comedogenic rating of 0, unlikely to clog pores.
What is the safety profile of benzophenone-5?
EWG scores it 2-4; safe in regulated sunscreen concentrations.